package common.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;

/**
 * 利用开源组件POI3.0.2动态导出EXCEL文档 转载时请保留以下信息，注明出处！
 * 
 * @author leno
 * @version v1.0
 * @param <T>
 *            应用泛型，代表任意一个符合javabean风格的类
 *            注意这里为了简单起见，boolean型的属性xxx的get器方式为getXxx(),而不是isXxx()
 *            byte[]表jpg格式的图片数据
 */
public class ExportExcel<T>
{
	public void exportExcel(Collection<T> dataset, OutputStream out)
	{
		exportExcel("测试POI导出EXCEL文档", null, dataset, out, "yyyy-MM-dd");
	}

	public void exportExcel(String[] headers, Collection<T> dataset,
			OutputStream out)
	{
		exportExcel("测试POI导出EXCEL文档", headers, dataset, out, "yyyy-MM-dd");
	}

	public void exportExcel(String[] headers, Collection<T> dataset,
			OutputStream out, String pattern)
	{
		exportExcel("测试POI导出EXCEL文档", headers, dataset, out, pattern);
	}

	/**
	 * 这是一个通用的方法，利用了JAVA的反射机制，可以将放置在JAVA集合中并且符号一定条件的数据以EXCEL 的形式输出到指定IO设备上
	 * 
	 * @param title
	 *            表格标题名
	 * @param headers
	 *            表格属性列名数组
	 * @param dataset
	 *            需要显示的数据集合,集合中一定要放置符合javabean风格的类的对象。此方法支持的
	 *            javabean属性的数据类型有基本数据类型及String,Date,byte[](图片数据)
	 * @param out
	 *            与输出设备关联的流对象，可以将EXCEL文档导出到本地文件或者网络中
	 * @param pattern
	 *            如果有时间数据，设定输出格式。默认为"yyy-MM-dd"
	 */
	public void exportExcel(String title, String[] headers,
			Collection<T> dataset, OutputStream out, String pattern)
	{
		// 声明一个工作薄
		HSSFWorkbook workbook = new HSSFWorkbook();
		// 生成一个表格
		HSSFSheet sheet = workbook.createSheet(title);
		// 设置表格默认列宽度为15个字节
		sheet.setDefaultColumnWidth(15);
		// 生成一个样式
		HSSFCellStyle style = workbook.createCellStyle();
		// 设置这些样式
		style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
		style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font = workbook.createFont();
		font.setColor(HSSFColor.VIOLET.index);
		font.setFontHeightInPoints((short) 12);
		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
		// 把字体应用到当前的样式
		style.setFont(font);
		// 
		HSSFCellStyle style2 = workbook.createCellStyle();
		style2.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);
		style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style2.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style2.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
		// 生成另一个字体
		HSSFFont font2 = workbook.createFont();
		font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
		// 把字体应用到当前的样式
		style2.setFont(font2);

		// 声明一个画图的顶级管理器
		HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
		// 定义注释的大小和位置,详见文档
		HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0,
				0, 0, 0, (short) 4, 2, (short) 6, 5));
		// 设置注释内容
		comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));
		// 设置注释作者，当鼠标移动到单元格上是可以在状态栏中看到该内容.
		comment.setAuthor("leno");

		// 产生表格标题行
		HSSFRow row = sheet.createRow(0);
		for (int i = 0; i < headers.length; i++)
		{
			HSSFCell cell = row.createCell(i);
			cell.setCellStyle(style);
			HSSFRichTextString text = new HSSFRichTextString(headers[i]);
			cell.setCellValue(text);
		}

		// 遍历集合数据，产生数据行
		Iterator<T> it = dataset.iterator();
		int index = 0;
		while (it.hasNext())
		{
			index++;
			row = sheet.createRow(index);
			T t = (T) it.next();
			// 利用反射，根据javabean属性的先后顺序，动态调用getXxx()方法得到属性值
			Field[] fields = t.getClass().getDeclaredFields();
			for (int i = 0; i < fields.length; i++)
			{
				HSSFCell cell = row.createCell(i);
				cell.setCellStyle(style2);
				Field field = fields[i];
				String fieldName = field.getName();
				String getMethodName = "get"
						+ fieldName.substring(0, 1).toUpperCase()
						+ fieldName.substring(1);
				try
				{
					Class tCls = t.getClass();
					Method getMethod = tCls.getMethod(getMethodName,
							new Class[]
							{});
					Object value = getMethod.invoke(t, new Object[]
					{});
					String textValue = null;
					if(value != null){
						if (value instanceof Boolean)
						{
							boolean bValue = (Boolean) value;
							textValue = "男";
							if (!bValue)
							{
								textValue = "女";
							}
						}
						else if (value instanceof Date)
						{
							Date date = (Date) value;
							SimpleDateFormat sdf = new SimpleDateFormat(pattern);
							textValue = sdf.format(date);
						}
						else if (value instanceof byte[])
						{
							// 有图片时，设置行高为60px;
							row.setHeightInPoints(60);
							// 设置图片所在列宽度为80px,注意这里单位的一个换算
							sheet.setColumnWidth(i, (short) (35.7 * 80));
							// sheet.autoSizeColumn(i);
							byte[] bsValue = (byte[]) value;
							HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0,
									1023, 255, (short) 6, index, (short) 6, index);
							anchor.setAnchorType(2);
							patriarch.createPicture(anchor, workbook.addPicture(
									bsValue, HSSFWorkbook.PICTURE_TYPE_JPEG));
						}
						else
						{
							// 其它数据类型都当作字符串简单处理
							textValue = value.toString();
						}
					}
				
					// 如果不是图片数据，就利用正则表达式判断textValue是否全部由数字组成
					if (textValue != null)
					{
						Pattern p = Pattern.compile("^//d+(//.//d+)?$");
						Matcher matcher = p.matcher(textValue);
						if (matcher.matches())
						{
							// 是数字当作double处理
							cell.setCellValue(Double.parseDouble(textValue));
						}
						else
						{
							HSSFRichTextString richString = new HSSFRichTextString(
									textValue);
							HSSFFont font3 = workbook.createFont();
							font3.setColor(HSSFColor.BLUE.index);
							richString.applyFont(font3);
							cell.setCellValue(richString);
						}
					}
				}
				catch (SecurityException e)
				{
					e.printStackTrace();
				}
				catch (NoSuchMethodException e)
				{
					e.printStackTrace();
				}
				catch (IllegalArgumentException e)
				{
					e.printStackTrace();
				}
				catch (IllegalAccessException e)
				{
					e.printStackTrace();
				}
				catch (InvocationTargetException e)
				{
					e.printStackTrace();
				}
				finally
				{
					// 清理资源
				}
			}
		}
		try
		{
			workbook.write(out);
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}finally{
			try {
				if(out!=null){
					out.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
	
	public void export(String title, String[] headers,
			Collection<T> dataset, OutputStream out, String pattern,int type,Map<String,String> map,File file)
	{
		// 声明一个工作薄
		HSSFWorkbook workbook = new HSSFWorkbook();
		// 生成一个表格
		HSSFSheet sheet = workbook.createSheet(title);
		// 设置表格默认列宽度为15个字节
		sheet.setDefaultColumnWidth(15);
		// 生成一个样式
		HSSFCellStyle style = workbook.createCellStyle();
		// 设置这些样式  标题样式
		//style.setFillForegroundColor(HSSFColor.BLACK.index);
		//style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		//style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style.setBorderRight(HSSFCellStyle.BORDER_THIN);
		//style.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font = workbook.createFont();
		//font.setColor(HSSFColor.VIOLET.index);
		font.setFontHeightInPoints((short) 15);
		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
		// 把字体应用到当前的样式
		style.setFont(font);
		
		// 样式2 信息样式
		HSSFCellStyle style1 = workbook.createCellStyle();
		// 设置这些样式
		//style.setFillForegroundColor(HSSFColor.BLACK.index);
		//style1.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style1.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style1.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style1.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style1.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style1.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font1 = workbook.createFont();
		//font1.setColor(HSSFColor.VIOLET.index);
		font1.setFontHeightInPoints((short) 12);
		font1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
		// 把字体应用到当前的样式
		style1.setFont(font1);
		
		// 样式3 内容样式
		HSSFCellStyle style2 = workbook.createCellStyle();
		//style2.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);
		//style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style2.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style2.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
		// 生成另一个字体
		HSSFFont font2 = workbook.createFont();
		font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
		// 把字体应用到当前的样式
		style2.setFont(font2);

		// 声明一个画图的顶级管理器
		HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
		// 定义注释的大小和位置,详见文档
		HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0,
				0, 0, 0, (short) 4, 2, (short) 6, 5));
		// 设置注释内容
		comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));
		// 设置注释作者，当鼠标移动到单元格上是可以在状态栏中看到该内容.
		comment.setAuthor("leno");

		//type=1 银联 type=2 商户 type=3 运营商
		if(type==1){
			HSSFRow row = sheet.createRow(1);
			HSSFCell cell = row.createCell(11);
			cell.setCellValue("中国银联移动支付直联商户交易明细表(银联)");
			cell.setCellStyle(style);
			HSSFRow row1 = sheet.createRow(3);
			HSSFCell cell1 = row1.createCell(1);
			cell1.setCellValue("清算日期");
			cell1.setCellStyle(style1);
			HSSFCell cell2 = row1.createCell(2);
			//数据填充 暂留
			cell2.setCellStyle(style1);
			cell2.setCellValue(map.get("squareTime"));
			HSSFCell cell3 = row1.createCell(5);
			cell3.setCellValue("生成日期");
			cell3.setCellStyle(style1);
			HSSFCell cell4 = row1.createCell(6);
			//数据填充 暂留
			cell4.setCellStyle(style1);
			cell4.setCellValue(map.get("nowDate"));
		}
		if(type==2){
			HSSFRow row = sheet.createRow(1);
			HSSFCell cell = row.createCell(4);
			cell.setCellValue("中国银联移动支付直联商户交易明细表(商户)");
			cell.setCellStyle(style);
			HSSFRow row1 = sheet.createRow(3);
			HSSFCell cell1 = row1.createCell(1);
			cell1.setCellValue("商户编号:");
			cell1.setCellStyle(style1);
			HSSFCell cell2 = row1.createCell(2);
			//数据填充 暂留
			cell2.setCellStyle(style1);
			cell2.setCellValue(map.get("mercId"));
			HSSFCell cell3 = row1.createCell(5);
			cell3.setCellStyle(style1);
			cell3.setCellValue("商户名称:");
			HSSFCell cell4 = row1.createCell(6);
			cell4.setCellStyle(style1);
			//商户名称数据填充 暂留
			cell4.setCellValue(map.get("mercName"));
			HSSFRow row2 = sheet.createRow(5);
			HSSFCell cell21 = row2.createCell(1);
			cell21.setCellValue("清算日期:");
			cell21.setCellStyle(style1);
			HSSFCell cell22 = row2.createCell(2);
			//数据填充 暂留
			cell22.setCellStyle(style1);
			cell22.setCellValue(map.get("squareTime"));
			HSSFCell cell23 = row2.createCell(5);
			cell23.setCellStyle(style1);
			cell23.setCellValue("生成日期:");
			HSSFCell cell24 = row2.createCell(6);
			cell24.setCellStyle(style1);
			//商户名称数据填充 暂留
			cell24.setCellValue(map.get("nowDate"));
		}
		if(type==3){
			HSSFRow row = sheet.createRow(1);
			HSSFCell cell = row.createCell(11);
			cell.setCellValue("中国银联移动支付直联商户交易明细表(运营商)");
			cell.setCellStyle(style);
			HSSFRow row1 = sheet.createRow(3);
			HSSFCell cell1 = row1.createCell(1);
			cell1.setCellValue("清算日期");
			cell1.setCellStyle(style1);
			HSSFCell cell2 = row1.createCell(2);
			//数据填充 暂留
			cell2.setCellStyle(style1);
			cell2.setCellValue(map.get("squareTime"));
			HSSFCell cell3 = row1.createCell(5);
			cell3.setCellValue("生成日期");
			cell3.setCellStyle(style1);
			HSSFCell cell4 = row1.createCell(6);
			//数据填充 暂留
			cell4.setCellStyle(style1);
			cell4.setCellValue(map.get("nowDate"));
		}
		
		if(type==4){
			//HSSFRow row = sheet.createRow(1);
			//HSSFCell cell = row.createCell(11);
			//cell.setCellValue("中国银联移动支付直联商户交易明细表(银联)");
			//cell.setCellStyle(style);
			HSSFRow row1 = sheet.createRow(3);
			HSSFCell cell1 = row1.createCell(1);
			cell1.setCellValue("生成日期");
			cell1.setCellStyle(style1);
			HSSFCell cell2 = row1.createCell(2);
			//数据填充 暂留
			cell2.setCellStyle(style1);
			cell2.setCellValue(map.get("nowDate"));
			HSSFCell cell3 = row1.createCell(5);
			cell3.setCellValue("统计金额");
			cell3.setCellStyle(style1);
			HSSFCell cell4 = row1.createCell(6);
			//数据填充 暂留
			cell4.setCellStyle(style1);
			cell4.setCellValue(map.get("totalManey"));
		}
		
		// 产生表格标题行
		HSSFRow row = sheet.createRow(7);
		if(type==0){
			 row = sheet.createRow(1);
		}
		for (int i = 1; i <= headers.length; i++)
		{	
			HSSFCell cell = row.createCell(i);
			cell.setCellStyle(style1);
			HSSFRichTextString text = new HSSFRichTextString(headers[i-1]);
			cell.setCellValue(text);
		}

		// 遍历集合数据，产生数据行
		Iterator<T> it = dataset.iterator();
		int index = 7;
		if(type==0){
			index = 1;
		}
		while (it.hasNext())
		{
			index++;
			row = sheet.createRow(index);
			T t = (T) it.next();
			// 利用反射，根据javabean属性的先后顺序，动态调用getXxx()方法得到属性值
			Field[] fields = t.getClass().getDeclaredFields();
			HSSFFont font3 = workbook.createFont();
			for (int i = 1; i <= fields.length; i++)
			{
				HSSFCell cell = row.createCell(i);
				cell.setCellStyle(style2);
				Field field = fields[i-1];
				String fieldName = field.getName();
				String getMethodName = "get"
						+ fieldName.substring(0, 1).toUpperCase()
						+ fieldName.substring(1);
				try
				{
					Class tCls = t.getClass();
					Method getMethod = tCls.getMethod(getMethodName,
							new Class[]
							{});
					Object value = getMethod.invoke(t, new Object[]
					{});
					String textValue = null;
					if(value != null){
						if (value instanceof Boolean)
						{
							boolean bValue = (Boolean) value;
							textValue = "男";
							if (!bValue)
							{
								textValue = "女";
							}
						}
						else if (value instanceof Date)
						{
							Date date = (Date) value;
							SimpleDateFormat sdf = new SimpleDateFormat(pattern);
							textValue = sdf.format(date);
						}
						else if (value instanceof byte[])
						{
							// 有图片时，设置行高为60px;
							row.setHeightInPoints(60);
							// 设置图片所在列宽度为80px,注意这里单位的一个换算
							sheet.setColumnWidth(i,  (int)(35.7 * 80));
							// sheet.autoSizeColumn(i);
							byte[] bsValue = (byte[]) value;
							HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0,
									1023, 255, (short) 6, index, (short) 6, index);
							anchor.setAnchorType(2);
							patriarch.createPicture(anchor, workbook.addPicture(
									bsValue, HSSFWorkbook.PICTURE_TYPE_JPEG));
						}
						else
						{
							// 其它数据类型都当作字符串简单处理
							textValue = value.toString();
						}
					}
				
					// 如果不是图片数据，就利用正则表达式判断textValue是否全部由数字组成
					if (textValue != null)
					{
						Pattern p = Pattern.compile("^//d+(//.//d+)?$");
						Matcher matcher = p.matcher(textValue);
						if (matcher.matches())
						{
							// 是数字当作double处理
							cell.setCellValue(Double.parseDouble(textValue));
						}
						else
						{
							HSSFRichTextString richString = new HSSFRichTextString(
									textValue);
							//font3.setColor(HSSFColor.BLUE.index);
							richString.applyFont(font3);
							cell.setCellValue(richString);
						}
					}
				}
				catch (SecurityException e)
				{
					e.printStackTrace();
				}
				catch (NoSuchMethodException e)
				{
					e.printStackTrace();
				}
				catch (IllegalArgumentException e)
				{
					e.printStackTrace();
				}
				catch (IllegalAccessException e)
				{
					e.printStackTrace();
				}
				catch (InvocationTargetException e)
				{
					e.printStackTrace();
				}
				finally
				{
					// 清理资源
				}
			}
		}
		try
		{
			if(out!=null)
				workbook.write(out);
			if(file!=null){
				FileOutputStream ops = new FileOutputStream(file);
				workbook.write(ops);
			}
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}finally{
			try {
				if(out!=null){
					out.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
	
}